"The ruling was the result of a suit, in which I am one of the plaintiffs, brought against the National Security Agency by the American Civil Liberties Union. It was a response to revelations by this newspaper in December 2005 that the agency had been monitoring the phone calls and e-mail messages of Americans for more than four years without first obtaining warrants from the Foreign Intelligence Surveillance Court, as required by the Foreign Intelligence Surveillance Act. In the past, even presidents were not above the law. When the F.B.I. turned up evidence during Watergate that Richard Nixon had obstructed justice by trying to cover up his involvement, a special prosecutor was named and a House committee recommended that the president be impeached."